Question

-4/9:(2/3:8/81)=
(-1 .8/18):(2.9/12):(-15/78)=
(-3/4)+(-4/21):(8/42)=
(-5/8-7/9:14/3):(-5/12)=

Answer 1

-4/9÷(2/3×81/8)
-4/9÷27/4
-4/9×4/27
-16/243

(-1,8/18)÷2, 9/12÷(-15/78)
(-0,1)÷29/10/12÷(-15/78)
(-1/10)÷29/120÷(-15/78)
1/10×120/29×78/15
12/29×26/5
312/145

Answer 2

Trebuie sa aibă 20 de caractere asa ca scriu asta